Whilst idly perusing e-bay yesterday, I came across a site selling insignia from all 3 services. In the RAF section were the usual pilots' wings plus the "half wing" brevets for navigators (with an "N"), loadmasters (LM) & so on. However, there was also a half wing with "RAF" in the centre.

Can anyone identify the trade for this brevet as the only time I've ever seen "RAF" in a brevet is the pilots' full wing?

I think you will find this is the new Weapons Systems Operators brevet. Issued to FJ rear seaters, AWACS, Nimrod and the like but don't know all the details. I believe that all those that qualify after a certain date have to wear it (2004?), those qualified prior are afforded grandfather rights to retain their old brevet.